Xbox 360 was just an amazing console. Other than paid online, proprietary HDD's and RROD.
Still got my Xbox 360 Slim and played a few games earlier this year. The ability to install any disc-based game to your console for fasting loading and no disc drive sound was a great underrated feature. It had the best console version of third party titles, it was cheaper than the PS3 and it was quieter than the PS3.
OFC the RROD was horrific, though my launch PS3 had the YLOD so...
I prefer the PS3 first party games but as an overall package the 360 is the better console of it's era imo, and MS will never recapture what they did.